Balanced door



May 12, 1953 HANSSEN 2,637,877

BALANCED DOOR Filed April 20, 1948 awi ATTORN EYS Patented May 12, 1953 GFFICE 1 BALANCED noon Petter M. Hanssen,' Frewsburg, N. Y., assignor to Ellison Bronze Company, Inc., Jamestown, N. Y., a corporation of New York Application April 20, 1948, Serial No. 22,225

The invention relates to a balanced door organization such as that illustrated and described in the Ellison Patents 2,019,526, 2,019,527, and 2,019,528. The balanced door organizations of the patents show a bumper spring within the door check mechanism. for resisting movement of the door when it approaches full open position. In other Words the door check piston operates to close the door slowly when the door has reached approximate closed position and the bumper resists further movement of the door when it approaches approximate full op n position. The bumper mechanism to be described is an improvement over the bumper mechanism associated with the door check and also enables the use of a smaller and less expensive spring.

It is an-objec't of the invention 'to construct a balanced door organization having a bumper engageable when the door reaches approximately fully opened position which bumper i of'simple construction and relatively inexpensive to manufacture.

Another object of the invention is to construct a balanced door organization in which a bumper is provided in the end of the guide channel and is engaged by the guide means or roller carried by the door when the latter approaches the end of the channel.

Other objects of the invention will be more apparent from the following description when Figure 2 is a top View of a balanced door organization with the door in fully opened position;

Figure 3 is a vertical section through the guide channel and limit bumper for the balanced door; and

Figure 4 is a plan view of the guide channel.

A balanced door organization includes a door I which is mounted upon arms, two arms H and 12 being shown one of which is located adjacent or at the top and the other adjacent or at the bottom of the door and one end of each arm is mounted for pivotal movement with respect to the door frame. Any suitable mounting may be used as that illustrated including a tube 13 to which each arm is secured and the tube and arm assembly is mounted for rotation within the frame F such as upon bearings M and I5, the latter carrying the weight of the door organization. The other end of each arm carries pivotal means It and I! which is received by Claims. (01. -'16) pivot bearings l8. and 19 secured to the door at a point between the vertical edges thereof. A spring 255 normally operates to turn at least one arm in a' clockwise direction as viewed in Figure 2 to propel the door towards closed position. The spring shown operates upon the tube [3 so that the spring 20 turns both arms to swing the door to closed position.

The door carries a guide means, shown as a guide roller 23, which is secured to the top edge of the door at apoint'between the vertical edges thereof and spaced from the pivot means ll. The guide'roller'is received in a guide channel 24 whichis secured. to the lintel or cornice L of the door frame Thepivoted arms I6 and I7 and the guide means 23 moving in the guide channehfll gives the door a combined pivoting and side w'ise movement thereof with 'a portion of the door swinging'inwardly of the doorframe and another portion swinging outwardly thereof.

Within the guide channel 24 at theend there of adjacent the pivotal mounting" I3; M for the arm is a bumper or bumper means 27. The bumper is freely movable with respect to the channel at the end thereof and the movement particularly shown is a sliding movement. The bumper may have a rubber buffer 28 to reduce or eliminate any shock by engagement of the guide roller 23 therewith. The bumper has an extension 29 secured thereto by screws :30 and forming a part of the bumper which extension projects through a slot 3! in the upper face of the channel. The slot forms flanges or shoulders 32 which slidably mounts the bumper upon the channel.

The bumper is propelled to the right as shown in Figure 3 by suitable spring means which is shown as a hole 35 in the extension in which a pin 36 is received and freely slidable. The pin may be secured to a bracket 31 carried by the frame channel or associated structure. The pin is shown as threaded into a bracket. A helical spring 33 is mounted upon the pin so that one end abuts the bracket and the other end abuts the bumper means or its extension 29 to propel the latter in the direction of the channel.

In operation as the door opens the guide roller travels in the channel to the left, as shown in the figures, engages the bumper when the door is adjacent fully open position as shown in Figures 3 and i and slides the bumper to the left as shown in Figure 2. This movement is resisted by the spring 38 with the result that it cushions the final opening movement of the door and spring therefore aids the door closing spring 20.

in starting the closing of the door by action of the spring upon the guide roller and by a force exerted in alignment with; the. guide channel This is one of the reasons, that a considerablysmaller bumper spring may be used thamwas necessary with former bumper constructions.

The construction also provides one which is" simpler and more economically manufacturediyet serves as efiectively to perform its bumper function.. Replacement. oi a. broken. bumper. spring. is also more easily accomplished.

The location of the. bumper. means. at.the,.end' of the: guide channel. 2 does notinterferewith. therlocation. and operation of. a.door. holding lever. 4| mounted. upon a pivot 42 which maybe depressed. into. the channel to engage. the guide. roller 23 when the door is.f11llyopened and. hold. the door in opened position against. the pressure of, the-springs. 38 andifl '00-01056 the: door.

This: invention. is. presented-I to. fill. a. needfor. improvements in abalanced door organization with bumper. It isunderstoodthat. various modi fioations in. structure, aswell as. changes in: mode, of operation. assembly, andmanner. of use, may andv often do occur tothose. skilled in the art, especiallyai-tenbenefiting; from the teachings. of; an. invention. Henca, it. will. beunderstood. that thisdisolosnreis illustrative. of preferred means.

of" embodying, the; invention. in-.- useful formrby a in a: door-fraine comprising a: door, at least.two'

arms one located adj acent: the top and. the. other. adjacent: the bottom of the door, means: pivotal? 1y. mountingoneend of ea'chlarmito a; door frame;

including spring means acting on the pivot means to close the door, means pivotally mounting the other end of each arm to the door at a point between the vertical edges thereof, a channel having guiding walls adapted to be mounted on the door frame above the door, a guide means secured to the door and movable in the channel whereby the door. is adapted tmrronmally open and close with acompound' sliding Y andswinging movement, a bumper, means movably mounting the bumper in the channel at the end thereof adjacent. the arms and engageable by the guide means when the door is adjacent fully open posi- 610115 and; spring, means resisting movement of the bumper; whenengaged by the guide means.

2'. A balanced door organization as in claim Linwhich-thebumper mounting means is a slide carried by the channel.

3.i.A'- balanced door organization as in claim 1 including a slot in the channel forming flanges,

and the; bumper. having. means slidably engaging the: flanges.

4: A balanced. door. organization as-in-v claim 1: including. a pin. secured above the channel and inaalignmenttherewith; the springbeing helicah and mounted upon the. pin-,. and. the. bumper en.- gaging; theend of the spring.

5; A balanced door organization; as-inclaim 1". including; a. pin secured above, the channel. and: in; alignment therewith; thespring being helical: and mounted upont-henpin, an extension Onzthfii bumper having a holein. which: the. pini is: received,, and the: extension-engaging. the? end of.

theaspring,

PEIl'IER, ,HANSSEN;

References vCited-ins. the; file at this patent? UNITED STA-TES' PA'I'EN'IS Number: Name. 4 Date 1,141,485 Putnam June: 1,.1915, 2,019,527 Ellison Nov. 5,.1935 2,019,528 Ellison. Nov. 5,, 1935 2,092,531 Dimick Sept..7,.193'7- 2389 233.- Vanderveld- Feb. 6,v 1940 2,449,686 Brinda Sept. 21,.19148 2,4.49587 Brinda .Sept. 21,1948 2,479,597 Anton Aug..23,.l949 

